Washing-machine.



G. PINOLI.

. WASHING MACHINE.

APPLICATION FILED 11110. 5, 1911.

1,030,855, Patented June 25, 1912.

2 SHEETS-SHEET 1 G. PINOLI.

WASHING MACHINE.

urnuumu FILED mm. 5, 1911.

Patented June 25, 1912.

2 SHEETSSHEET 2.

a m m ti are CARLO PINOLI, OF LONDON, ENGLAND, ASSIGNOB OF ONE-HALF 'I'O TITO GIUSTI, OF LEGHORN, ITALY.

WASHING-MACHINE.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, CARLO PINoLr, a subject of His Majesty the King of Italy, residing at London, England, have invented new and useful Improvements in VVashing- Machines, of which the following is a specification.

This invention relates to improvements in apparatus for washing culinary utensils such as plates, dishes, silver and the like, and has particular reference to machines of the type in which the articles to be washed are passed between a plurality of rotary brushes.

According to this invention the articles to be washed are fed between a plurality of rotary brushes and carried forward by the rotation of the latter the said brushes being arranged to rotate in opposite directions and at different peripheral speeds whereby the advance of the articles is prevented from becoming too rapid and the necessity for separate conveying means is avoided.

The brushes may be arranged in pairs, one behind the other, with the bristles of the brushes of each pair intermeshing, so that grease or dirt, which accumulates on the brushes, will be automatically loosened, as the brushes rotate, and allowed to fall therefrom. They are preferably contained in a tank and are arranged to discharge the articles onto a. belt conveyer which latter carries the articles to a rinsing tank.

Figure l of the accompanying drawing illustrates diagrammatically and by way of example, one arrangement of apparatus, according to this invention. Figs. 2 and 8 are illustrations of modified details of construction.

Referring to the drawing, A represents a washing tank which is supported on legs A and divided into two compartments A A by a grid A A sieve or perforated tray B is located in the compartment A and is connected by chains B and a system of arms and levers B B B to a treadle O. WVit-hin the tank A are four rotary brushes D, D, D D arranged in pairs with the bristles of each pair intermeshing. These rotary brushes are driven by an electro-motor E through suitable belts in such manner that the brushes of each pair rotate in opposite directions (as indicated by the arrows) and at different speeds; the brushes D, D rotating at twice thespeed of the brushes D D". At the rear of the Patented June 25, 1912.

Serial No. 664,107.

rotary brushes there is arranged a belt conveyer F of any convenient type mounted 011 rollers F F and having a number of transverse steps F A tension device for maintaining the belt F taut is secured to the wall of the tank A and comprises a roller G, in contact with the under portion of the belt, and carried by a screw shaft G which latter is adjustably supported in a bracket G The shaft G is adjusted in the bracket G by means of nuts G G The conveyor is driven by a belt from the brush D suitable pulleys being provided for this purpose.

At the rear of the tank A there is a ri11s ing tank H having an opening H in the front wall thereof which registers with a similar opening A in the rear wall of the tank A. Within the rinsing tank is a removable sieve or basket H having side handles H whereby it may be lifted out of the tank or replaced therein. In place of the handles the basket H can be operated by means of a cord passing around an overhead pulley or pulleys and down to a winding drum operated by a handle as shown in dotted lines.

In addition to the rotary brushes there are two stationary brushes J, J, arranged so as to be slightly inclined to the vertical and with their bristles in contact. These brushes J, J, are disposed before the rotary brushes D, D, and in close proximity thereto. Another stationary brush K is arranged between the rotary brushes D D Between the rotary brushes D 2 is a bridge-piece L of wood or suitable material or it may be a fixed brush B (Fig. 2) and between the brush D and the conveyor is another bridge-piece L or a fixed brush, B (Fig. 2) these latter serving to prevent small articles from falling down to the bottom of the tank. A sink M having an opening in the bottom is provided at the bottom of the compartment A of the tank A and the bottom of the tank is inclined toward this sink so that all the solid particles of dirt collect therein. A removable sieve or basket M is disposed in the sink so that the solid particles of dirt can be removed. The sink has a slidable discharge valve 1 2 which latter is arranged over a drain pipe M so that the water can be discharged. The tank A is partly filled with soda and water or other solution capable of easily removing grease and the rinsing tank H is filled to a slightly higher level with clean hot water.

The operation of the apparatus is as follows :The compartment A is filled with dirty plates or other culinary articles by means of the basket B operated by the treadle C. The operator then feeds the articles between the stationary brushes J, J which remove the coarser particles of dirt. The articles pass from the brushes J, J onto the rotary brushes D, D where they are thoroughly scrubbed, they then pass over the bridge-piece L and in contact with the stationary brush K the function of which is to retard the advance of the articles from the brushes D, D, to the brushes D D After passing the brush K the articles are passed between the rotary brushes D D where they are further scrubbed and from thence delivered onto the conveyer F which latter carries them to the opening A H and finally discharges them into the rinsing tank H. In order to check the articles as they enter the tank H and thus prevent them from colliding with the wall of the tank with too much force, a chute N is provided down which the articles slide slowly. Alternatively a leather screen 0 (Fig. 3)

a may be employed which latter hangs down behind the opening A H, and deflects the articles as they enter the tank onto a leather or other cushion O. The rotation of the brushes D D causes a circulation of the water through the grid A. into the compartment A and serves to remove the loose particles of dirt from the plates or other articles.

Owing to the rotary brushes of each pair rotating at different speeds the articles are prevented from advancing too rapidly through the apparatus and moreover are submitted to a scrubbing action which effectively removes all the dirt. Again -owing to the peripheries of the rotary brushes intermeshing they clean one another automatically and are therefore'prevented from becoming clogged with grease, the dirt falling to the bottom of the tank.

Obviously various modifications may be made in the arrangement and construction of the apparatus without departing from the spirit of the invention the above description being given merely by way of example.

- That I claim is 1. In a washing machine, a washing tank, pairs of rotary brushes between which the articles to be washed are fed, said pairs being arranged one behind the other, means for rotating the brushes of each pair in opposite directions and at different peripheral speeds and a bridge piece between adjacent pairs of brushes.

2. In a washing machine, a washing tank,

pairs of rotary brushes between which the articles to be washed are fed, said pairs being arranged one behind the other, means for rotating the brushes of each pair in opposite directions and at different peripheral speeds, a bridge piece between adjacent pairs of brushes, stationary brushes arranged before said rotary brushes and a stationary brush between adjacent pairs of rotary brushes arranged above the bridge piece. 7

3. In a washing machine, a washing tank, pairs of rotary brushes bet-ween which the articles to be washed are fed said pairs being arranged one behind the other, means for rotating the brushes of each pair in opposite directions and at difierent peripheral speeds and a stationary brush between the lower brushes of adjacent pairs.

4. In a washing machine, a washing tank, pairs of rotary brushes between which the articles to be washed are fed, said pairs being arranged one behind the. other, means for rotating the brushes of each pair in opposite directions and at diflerent peripheral speeds, a stationary brush between the lower brushes of adjacent pairs, and a stationary brush between the upper brushes of adjacent pairs of rotary brushes.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses. V

CARLO PINQLI.

Witnesses:

R. WESTACOTT, H. D. JAMEsoN.

Copies of this patent may be obtained for five cents each,'by addressing the Commissioner of Patents.

Washington, I). G. 

